The main application of SP028A SFP28 Evaluation Board is used to provide the Golden Unit or production line for SFP/ SFP+/ SFP28 transceiver module or AOC (Active Optical Cable) tests. The design is not for OIF-CEI module compliance, but it is compatible with MSA compliance from 1.25Gbps to 28Gbps. The PCB microwave design is to minimize the skew and crosstalk to provide better Eye diagram performance. With precision SMA adapters, users can get low jitter and higher mask margin while performing the test.

　　The 20pin D-sub adapter provides digital I/O that allows users for further debug via I2C or TTL. Please see the ping assignment for the correct functional arrangement.

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